ETF 012
Applies to: The electronic hygrotherm senses the ambient temperature and relative humidity in an enclosure with electric/electronic components and turns on a heater (or alternatively a fan) at either set point, helping prevent the formation of condensation in the enclosure. Due to its wide voltage range the hygrotherm can be utilised anywhere in the world. The external sensor can be positioned freely anywhere in the enclosure for precise measurements.
download> Temperature and humidity adjustable
> Wide voltage range
> Operating temperature down to -40°C
> High switching capacity
> With external sensor
The electronic hygrotherm senses the ambient temperature and relative humidity in an enclosure with electric/electronic components and turns on a heater (or alternatively a fan) at either set point, helping prevent the formation of condensation in the enclosure. Due to its wide voltage range the hygrotherm can be utilised anywhere in the world. The external sensor can be positioned freely anywhere in the enclosure for precise measurements.
Electronic Hygrotherm with external sensor ETF 012
| Art. No. Cable 1m | Art. no. Cable 2m | Operating voltage | Setting range temperature | Setting range humidity |
|---|---|---|---|---|
| 01231.0-00 | 01231.0-01 | 100-240VAC, 50/60Hz (min. 90VAC, max. 265VAC) | 0 to +60°C | 50 to 90% RH |
| 01231.9-00 | 01231.9-01 | 100-240VAC, 50/60Hz (min. 90VAC, max. 265VAC) | +32 to +140°F | 50 to 90% RH |
| 01231.1-00 | 01231.1-01 | 24-48VDC (min. 20VDC, max. 60VDC) | 0 to +60°C | 50 to 90% RH |
| Switch difference (temperature) | 2K (±1K tolerance) at +25°C (+77°F), 50% RH |
|---|---|
| Switch difference (humidity) | 4% RH (±1% tolerance) at +25°C (+77°F), 50% RH |
| Reaction time (humidity) | approx. 5 sec. |
| Contact type | change-over contact (relay) |
| Service life | VDE: NO/NC > 15,000 cycles UL: NO/NC > 30,000 cycles |
| Max. switching capacity (relay output) | 240VAC, 10 (1.6) A 60VDC, 0.6A1 |
| Max. inrush current | AC 30A for 10 sec. |
| Optical indicator | LED |
| Connection | 5-pole terminal, clamping torque 0.5Nm max.: rigid/stranded2 wire 2.5mm2 (AWG 14) |
| Mounting | clip for 35mm DIN rail, EN 60715 |
| Casing | plastic according to UL94 V-0, light grey |
| Dimensions | 77 x 60 x 43mm |
| Weight | approx. 0.2kg |
| Fitting position | vertical |
| Operating/Storage temperature | -40 to +60°C (-40 to +140°F) |
| Operating/Storage humidity | max. 90% RH (non-condensing) |
| Protection type | IP20 |
| Approvals | VDE, UL File No. E164102, EAC |
1 not UL confirmed
2 When connecting with stranded wires, wire end ferrules must be used.
